Cleaning sand used at foundry
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United States of America Patent
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-
Jan 31, 2023
Grant Date -
Apr 1, 2021
app pub date -
Sep 25, 2020
filing date -
Sep 27, 2019
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An apparatus and a method for cleaning sand used at a foundry, wherein sand to be cleaned is screened by a screening apparatus. The screened sand and at least one liquid mixture is fed into an abrasive apparatus. After that, the screened sand is rubbed by the abrasive apparatus. The rubbed sand and at least one liquid mixture is added to a water separation screen for separating a water blend from the rubbed sand. Finally, the separated sand is transferred into an oven and cleaned thermally by rotating the separated sand in the heated oven.
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